Canister



FIG. 1 is a perspective view of a canister, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line portions of FIGS. 3 and 7 are included to show unclaimed subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a canister, as shown and described. 